const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const logger = require('koa-logger')
const { koaBody } = require('koa-body');

const user = require('./routes/user')
const book = require('./routes/book')
const borrow = require('./routes/borrow')
const location = require('./routes/location')
const review = require('./routes/review')


// error handler
onerror(app)

// middlewares
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))
app.use(koaBody());
app.use(views(__dirname + '/views', {
  extension: 'pug'
}))

// logger
app.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})

// routes
app.use(user.routes(), user.allowedMethods())
app.use(book.routes(), book.allowedMethods())
app.use(borrow.routes(), borrow.allowedMethods())
app.use(location.routes(), location.allowedMethods())
app.use(review.routes(), review.allowedMethods())


// error-handling
app.on('error', (err, ctx) => {
  console.error('server error', err, ctx)
});

module.exports = app


